Rucksack of flexible material has inside at least one inner bag containing interchangeable cool pack for keeping drinks and food cool

摘要

The rucksack has inside at least one inner bag (6) for holding at least one interchangeable cool pack (7). At least one heat insulating element (4) is set between the inner bag for the cool packet and the wall of the rucksack. Preferred Features: The cool packs are arranged on the two narrow sides and on the outside at the back.